【Well Protection】: The mainsail cover provides excellent protection for your boat against harsh weather conditions throughout the year, including wind, sandstorms, sun, and rain. The adjustable elastic design at the bottom helps secure the cover and enhances wind resistance. 【Material】: Made of 210D Ox cloth with PU coating, the sail cover is waterproof, tear-resistant, and durable. 【Easy Installation】: Designed for convenience, this cover is simple to install and secure. Sewn-in fastening straps allow for quick application and removal. 【All Seasons】: Suitable for year-round use, this four-season protective cover offers seamless defense against various weather conditions. 【Easy Clean】: The cover is easy to clean—simply wipe with a damp cloth and let it dry. It is foldable, lightweight, and convenient to carry and store. Size Chart: 340cm x 95cm / 133.86 inches x 37.40 inches Package Includes: 1 x Boat Mainsail Cover Note: Please allow slight variations of 1-2cm / 0.39-0.79 inches due to manual measurement.